In support of Rob Gradys comments, I have been a GM mechanic for 30 years and never had but 1 set of springs fail on a vehicle. This was after a major accident, they will settle over the course of time. ie.200/000miles.The springs on the dmc cars that i have worked on only fail when some one trys to tamper with them /heating/cutting. the comment about defective steel is bunk. i have a set of robs springs on the front my dmc they work great. i saw no need to lower the rear. the car sets perfect now. i have worked on all types of vehicles in my lifetyme as a mechanic/ comments about handling/suspension/alignment should be left to professional mechanics. i can work on my own car/ can you?????? bob miller